What is the test method?

Our food intolerance tests are done using a blood based method covering IgG 1,2,3,4, the blood sample collection process is done via a pin prick to the finger, it takes around 4-5 large droplets.

Why do food cause an IgGantibodies response?

Generally, foods are broken down during digestion into their component parts e.g. amino acids, glycerides etc. These pass harmlessly through the gut as the gut becomes inflamed (bloated) these proteins enter the bloodstream. This is where they are recognized by the immune system as being ‘foreign’. The immune system responds by making IgG antibodies to these foods.

What is the difference between hair and blood based test?

You can't test immune reactions via a hair sample, and in many cases there have been discrepancies in results when parts of the hair have been coloured/bleached. This has led to inconsistency in the sample tested twice. Our IgG 1,2,3,4 blood based testing covers the full range of antibodies responses, this is important, if a particular food elevates any antibodies against it, this means your gut and immune system recognises that food as a threat. This could affect the nutrients absorbed from this particular food and leads to multiple symptoms.

Do high IgG antibody levels cause symptoms?

When a food causes the body to produce high levels of IgG then these antibodies combine with the protein in the food to form an ‘antigen-antibody complex’. These complexes are usually eliminated by other cells in the immune system. However, if the immune system is overloaded, these insoluble molecules become deposited in tissues within the body, causing chronic inflammation and the subsequent production of symptoms.

Why test for IgG antibodies to foods?

The efficacy of a diet based on the measurement of IgG antibodies specific for food components has been demonstrated in a number of conditions, both in independent studies and clinical practice. Excellent results have been obtained in patients with migraine, IBS and obesity.

What is the lower age limit for testing?

Supply Life's existing policy for a lower age limit on testing for IgG food antibodies is that we do not recommend testing on children under the age of 2 years. We base this on the European Society for Paediatric Gastroenterology, Hepatology, and Nutrition Guidelines for the Diagnosis of Coeliac Disease 2012, which states that there is a possibility of false negative results occurring in infants younger than 2 years of age. This related to the fact that the infant gut is more permeable than that of an adult coupled with immature mucosal immunity that is still in the learning and development stage. We have used this criterion as antibody measurements in Coeliac Disease are comparable to food IgG measurements used in our food intolerance tests. However, we are aware that there are in fact no published guidelines that specifically indicate a minimum age for testing for such IgG antibodies, for example the guidelines for testing for coeliac antibodies indicate that such testing can be performed any time after the introduction of gluten into the diet. Therefore, where such requests are received from a statutory regulated professional the decision of when and what tests to perform will remain the responsibility of the requesting clinician.

What should be considered before testing - Is there any medication that I should avoid when taking a food intolerance test, due to its potential effects upon the results?

Customers should avoid the use of immunosuppressant medication if possible if performing these tests, as they may have an impact upon the results. Please refer to the medication datasheet in the “Support” section for further details.

How does the test work?

Food extracts are 'printed' onto nitrocellulose 'pads'™ on a glass microscope slide, together with calibration standards and controls. A blood sample provided by the patient is diluted and dispensed onto each printed microarray. Food IgG antibodies, if present, bind to the food extracts and the results are measured by a high-resolution scanner, before being calibrated against the standards using the reporting software to give quantitative results. This software then produces a tailor-made printout of the final food IgG antibody result for each food on the requested food panel.

Do you need to full the microvette all the way to the white line?

Although it is advisable to completely fill the tube, a half filled microvette tube should be enough to run the test. If there are any problems with a sample and the lab will let the customer know. However, if you are ordering two tests we can test from one sample if you provide a full microvette.

Do you need to store the blood in the fridge, if not sending the same day?

Yes, it does need to be stored in the fridge with the lid secured if not sending on the same day.

Can I upgrade my test to a larger food panel?

You can upgrade for up to a maximum of 4 weeks from the date that your first sample is received.

What are the sample requirements and test turnaround?

A pin-prick blood sample is required. Results are available within 10 working days.

Does the Supply Life test for all subclasses of IgG antibody or only IgG4?

Our process screens for all IgG subclasses 1-4, with the numbers on the test report representing the total IgG concentration for each food extract in the selected panel.

Surprising Symptoms and Ailments: Unveiling the Impact of Food Intolerance

August 18, 2023

In a world where dietary choices have a profound impact on our overall well-being, it's no surprise that various health issues can be traced back to the foods we consume. While some reactions to certain foods are immediately apparent, like allergies causing hives or difficulty breathing, others may fly under the radar, masquerading as different ailments altogether. These elusive culprits are known as food intolerances, and their effects can be both surprising and far-reaching. Supply Life, your partner in proactive health management, offers a range of home food intolerance tests, empowering you to take control of your health and life.

The Subtle Saboteurs: Food Intolerances Unveiled

Unlike food allergies that involve an immediate immune response, food intolerances are often delayed and may take hours or even days to manifest. This delayed onset makes identifying the problem foods a complex challenge. Individuals suffering from food intolerances might experience a wide range of symptoms, some of which may seem unrelated to diet. These surprising symptoms can lead to misdiagnosis and prolonged discomfort.

Thankfully, home food intolerance tests from Supply Life can help you pinpoint the underlying causes and make informed decisions about your diet.

The Unlikely Suspects: Surprising Symptoms of a Food Intolerance

Digestive Distress: One of the most common manifestations of food intolerance is gastrointestinal distress. Symptoms like bloating, gas, diarrhoea, and stomach cramps might be attributed to a sensitive gut, but they can also be indicative of a food intolerance. Often, foods like dairy, gluten, and certain artificial sweeteners are the culprits.

Migraines and Headaches: Frequent migraines or persistent headaches might not solely be due to stress or lack of sleep. Certain foods, such as aged cheeses, processed meats, and even chocolate, can trigger migraines in susceptible individuals. Identifying and avoiding these foods through intolerance testing could bring welcome relief.

Skin Issues: Skin conditions like eczema, acne, and rashes might have a dietary connection. Dairy, gluten, and high-sugar diets have been linked to these skin ailments. A food intolerance test can guide you toward clearer, healthier skin.

Joint Pain and Inflammation: Chronic joint pain and inflammation can be attributed to various factors, but food intolerances might play a role too. Nightshade vegetables, like tomatoes and peppers, have been linked to joint discomfort in sensitive individuals.

Fatigue and Mood Swings: Feeling chronically fatigued or experiencing unexplained mood swings could stem from your diet. Food intolerances might lead to nutrient malabsorption, affecting your energy levels and emotional well-being.

Empower Your Health with Supply Life's Food Intolerance Tests

Taking control of your health starts with understanding your body's unique responses to different foods. Supply Life's home food intolerance tests provide you with an accessible and effective way to uncover potential triggers for your discomfort. By identifying problem foods, you can make targeted adjustments to your diet and experience relief from surprising symptoms you might not have realised were connected to your food choices.

Take Charge of Your Health

Don't let subtle symptoms control your life. Supply Life empowers you to uncover the hidden links between your diet and your well-being. Our range of home food intolerance tests is designed to put you in control, allowing you to identify problem foods and make informed dietary decisions. Purchase your testing kit today and embark on a journey of self-discovery and wellness. Your health is in your hands with Supply Life.

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